AVS Forum banner

10861 - 10880 of 18943 Posts

·
Registered
Joined
·
3,986 Posts
KEMO is not as strong today. My humidity is 61%. KRCB is fine.

KEMO-SD 50.2 appears to be very starved of bits. No audio either. 50.1 is fine.

I have seen this before, time to get a capture and run TSReader!

SHF
 

·
Registered
Joined
·
6,358 Posts
There have been huge swings in signal strengths here the last few days again. There have been periods of especially good conditions to Mt. Sutro. The previously troublesome KBCW was SNR 31 dB this afternoon and KPIX was SNR 28 dB. KGO was SNR 31 dB for several hours. The really good conditions were to Salinas again. I've attached a composite spectrum analyzer image showing KSBW towering above all the other VHF stations. Even KCBA was equal to or better than Walnut Grove. The red line is the minimum signal strength of the pilot carrier necessary for the station to decode if the rest of the signal is flat.

A couple hours later KCBA was falling off the cliff.

KFTY was booming at SNR 28 dB.

Chuck
 

Attachments

·
Registered
Joined
·
3,986 Posts
KEMO TSReader output

Hi,

I got a full stream capture of KEMO.

KEMO-SD 50.2 now looks much better than the "I Love Lucy" or other show staring Lucille Ball that was on 50.2 earlier.





I wondered if Lucy was botched when created from the original tape.

Is 1.82 Mbps too low?

SHF
 

Attachments

·
Registered
Joined
·
6,358 Posts
Salinas LPTV is a mess.... or at least most of it is.

During some really good conditions this morning I surveyed the stations down there.

KOTR analog 2 - No longer on the air. No trace of a video carrier under superb conditions.
KMBY-LD 19 - Link problems, picture pixelates all the time.
KLFB-LD 22 - Off the air most of the time and has other issues when it is on the air.
K29AB analog 29 - Link issues, not always repeating KICU. Sometimes has just a ID slide or shows "No signal."
KDJT analog 33 - Has cross hatching interference. (This could be coming from KSDI analog 33 in Fresno although not a trace of KSDI-LD on 44 is detectable here.)
K38JP-LD 38 - Link issues. Pixelates when my TV says 0 errors.
KMMD-LD 39 - Has two dashed lines on the picture. See attachment. What is going on there?

There are a few more LPTV stations down there but I can't receive them.

Don't the owners of these stations ever look at them?

The one exception is KMUV analog 23 a Telemundo station. They now ID like a normal station and have partnered with KION to air a local newscast. I expect they will transition to digital on RF 21 eventually.

Chuck
 

Attachments

·
Registered
Joined
·
6,358 Posts
KTNC is having trouble with their link this afternoon. Lots of pixelating and long periods with no picture at all. We've had some strange conditions recently but they are very strange today. Still experiencing strong ducting conditions even in the middle of the afternoon.

Chuck
 

·
Registered
Joined
·
3,873 Posts
Signals are down somewhat from normal this afternoon, but not as bad as a couple days ago.

I see what you mean, Chuck, about KTNC. Their signal is holding steady at 23 dB SNR, but the picture on all three sub-channels is going from solid picture to black with a lot of pixelating in between. I noticed that all three are not pixelating the same amount at the same time, so they must be receiving three separate feeds. I wonder what means they use to get their signals from the studio to Mt. Diablo. Would microwave react like that?

Maybe that's what the KGO translator signal looks like when the receiver at Mt. Allison loses the channel 7 signal.

Larry
 

·
Registered
Joined
·
3,873 Posts
Is 1.82 Mbps too low?
SHF
Good question. I checked other stations and most, except KAXT 1, are allowing more bandwidth than that. Most are 2.5 Mb or better.

From watching KEMO 50.2, the quality of the picture there varies a lot depending on what show is being broadcast. Some look really bad, while others look okay. Some of the real old movies look like they're out of focus.

As Chuck pointed out in his post about Salinas/Monterey stations, I don't think a lot of these stations monitor their sub-channels very closely. You see some pretty terrible looking pictures and hear some very bad audio at times.

Larry
 

·
Registered
Joined
·
6,358 Posts
Over the years I've been accumulating the identifications of most of the stations I've received here. I made a simple web page listing all the stations linked to an image.

http://www.aa6g.org/OTA_TV/otatv.html

They're listed by virtual channel. Some of the IDs are not what I really wanted but some stations refuse to identify with a call sign and/or channel number. I noticed that KNTV never shows KNTV 11, just Bay Area NBC. Don't they have to identify once an hour? I'm only completely missing KCNS which I just overlooked. Next time it's in I'll get it. If it's not on my list then I have not received it.

Chuck
 

·
Registered
Joined
·
3,986 Posts
...
I noticed that KNTV never shows KNTV 11, just Bay Area NBC. Don't they have to identify once an hour? I'm only completely missing KCNS which I just overlooked. Next time it's in I'll get it. If it's not on my list then I have not received it.

Chuck
KNTV identifies themselves many times each second.

http://www.rabbitears.info/screencaps/ca-sfo/35280-0_0.htm

said:
Program Association Table

PAT Version Number: 1
Transport Stream ID: 397 (0x018d)

PMT PID 48 (0x0030) - Program 3 KNTV HD
PMT PID 64 (0x0040) - Program 4 COZI-TV


Transport Stream ID: 397 (0x018d) uniquely identifies the station. (DTV TSID:)


http://licensing.fcc.gov/cgi-bin/ws.exe/prod/cdbs/pubacc/prod/sta_det.pl?Facility_id=35280



KGO RF 7 and RF 35 have the same Transport Stream ID and KTVU RF 44 RF 48 also.


TSID list on RabbitEars:


http://www.rabbitears.info/oddsandends.php?request=tsid

SHF
 

·
Registered
Joined
·
6,358 Posts
KNTV identifies themselves many times each second.

Maybe I'm just way out of date but it used to be that stations had to ID once an hour, i.e. put it on the screen. Not anymore? The data in the digital stream is not used by all TVs when you just tune to a station. This morning I was receiving KRCR on 7 but my TV said it was KGO.

Chuck
 

·
Registered
Joined
·
3,986 Posts

·
Registered
Joined
·
3,873 Posts
Over the years I've been accumulating the identifications of most of the stations I've received here. I made a simple web page listing all the stations linked to an image.

http://www.aa6g.org/OTA_TV/otatv.html
Beautiful job, Chuck! I've gone through the first 20 channels, but plan to go back and look at the rest later on.

They're listed by virtual channel. Some of the IDs are not what I really wanted but some stations refuse to identify with a call sign and/or channel number. I noticed that KNTV never shows KNTV 11, just Bay Area NBC. Don't they have to identify once an hour? I'm only completely missing KCNS which I just overlooked. Next time it's in I'll get it. If it's not on my list then I have not received it.

Chuck
I noticed that KNTV introduced a new ID recently where they now identify themselves as "Channel 11, Cable 3 and 703"
KOFY has been showing their cable ID as 713 now.

I'm not sure what the FCC ID requirements are now. Maybe the PCIP is a legal ID. I know in the analog days we had to show a visual ID on the hour, or close to the hour during a normal break in programming. I remember having to super the KGO ID for three seconds on the hour during programming such as sports where there wasn't a break near the hour. I have noticed that KPIX and KNTV super their ID at various times now. KNTV does it frequently during the start of the late night shows.

Larry
 

·
Registered
Joined
·
6,358 Posts
Thanks! Looks like nothing has changed with the once per hour requirement. All the full power stations seem to identify but there are a lot of LP stations not IDing. And the ones that do are often sporadic about it. I've never seen K38JP identify which is why my image shows ESNE, the programming they are transmitting. The new KEZT seems to be a translator for KUVS and was showing KUVS 19 this morning.

Chuck
 

·
Registered
Joined
·
3,986 Posts
Thanks! Looks like nothing has changed with the once per hour requirement. All the full power stations seem to identify but there are a lot of LP stations not IDing. And the ones that do are often sporadic about it. I've never seen K38JP identify which is why my image shows ESNE, the programming they are transmitting. The new KEZT seems to be a translator for KUVS and was showing KUVS 19 this morning.

Chuck
said:
there are a lot of LP stations not IDing.
They have no requirement to do so. They are considered poor and unfunded.

As of May 2014 the list of LP stations filing for the final analog turnoff is still dismal.

The FCC has not OCRed many documents. If Google says there may be information in a ~ 100 page document I will not read beyond page five or so.

SHF


SHF
 

·
Registered
Joined
·
3,986 Posts
KEMO got the message or I sampled at a bad time

After fixing the HDHomeRun instructions I sampled KEMO twice today and the 50.2 rate was > 2.5 Mbps the first time and > 5 Mbps the second time.

So the 1.82 Mbps rate for 50.2 was when the main 50.1 stream needed more bits and was given them.

SHF
 

·
Registered
Joined
·
1,014 Posts
I noticed that KNTV introduced a new ID recently where they now identify themselves as "Channel 11, Cable 3 and 703"
Larry
KNTV & KVIE are the worst.
KNTV still has a bay area ota identity crisis. Constant changes with nothing that sticks. (or lasts)
KVIE has completely dumped the number 6 ..... or anything mentioning channel six.
At one time, they were calling "6-2" cable channel 7 ....huh
 

·
Registered
Joined
·
3,873 Posts
I got a good chuckle a few years ago when KNTV was calling itself NBC 3... exactly the same thing as KCRA was calling itself. Duh?

KTVU, KRON and KGO have been rock solid in their IDs over the years, but KPIX has wavered between KPIX 5 and CBS 5.

KQED's IDs are the same for all three of their stations, KQED, KQEH or KQET, so one is never sure which one you're watching... KQED, KQED+, KQED World, etc.

I still think that they should have never gone with the virtual channel idea. Stations should use their actual transmitter channel number when IDing themselves. We'd all get used to it in no time, but I doubt that is ever going to happen. We'd still have KGO 7 and KICU 36, but what's wrong with KTVU 44, KRON 38, KPIX 29, KQED 30, KNTV 12, etc.

KCSM tried calling themselves KCSM 43, but the FCC said they had to use their analog channel number.

Now we have messes like KDTV 14, KTNC 14, KTNC 42, KAXT 42, KAXT1, which can all be quite confusing at times.

Larry
 

·
Registered
Joined
·
6,358 Posts
KQED's IDs are the same for all three of their stations, KQED, KQEH or KQET, so one is never sure which one you're watching... KQED, KQED+, KQED World, etc.
The IDs I have for KQED and KQEH are a list of the three stations with the one you're watching at the top of the list. I don't know if this holds true for all their IDs. I don't have an ID for KQET. I need to work on that one the next time it is in.

KCSM tried calling themselves KCSM 43, but the FCC said they had to use their analog channel number.
I wonder why the FCC cares about that? KBSV was analog 23 but they're using 15 now. I believe KACA was analog 61 but now use 34. Maybe this is another case where the FCC doesn't care about insignificant stations.

I did capture an ID for KNTV where they have KNTV on the slide. They used the smallest almost transparent font for that part like they're trying to hide it.

Chuck

Edit: I saw the ID on KQET this morning and it showed KQED with the call signs of all three stations. There was no indication which station I was viewing.
 

·
Registered
Joined
·
50 Posts
Subchannel change

TheCoolTV is now on 2 KTLN subchannels, 68.2 and 68.4.
It looks like 68.2 is a straight mirror of 68.4.
However, earlier today I noticed an E/I program that was only airing on 68.2.
 

·
Registered
Joined
·
3,986 Posts
KQED's IDs are the same for all three of their stations, KQED, KQEH or KQET, so one is never sure which one you're watching... KQED, KQED+, KQED World, etc.
They do this because the same program may be on KQED 30.1, KQEH 54.2 and KQET 25.1 at the exact same time, or delayed on 30.3 or 54.3 or ... It's just one master control for all of KQED. Inc. streams.

said:
KCSM tried calling themselves KCSM 43, but the FCC said they had to use their analog channel number.
It was worse, the FCC FORCED KCSM to put an analog RF 60 transmitter on the air. It just had sufficient power to cover their city of license.

"ABC, NBC follies" post Click on the following link.

http://www.avsforum.com/forum/25-hdtv-technical/381623-official-avs-antenna-related-hardware-topic-465.html#post20661061

 
10861 - 10880 of 18943 Posts
Top